Mercedes-Benz CL55 AMG Rear Door Panel Speaker Size
The Mercedes-Benz CL55 AMG rear door panel accommodates a 4 inch speaker size and 6.5 inch speakers across the model's production span. Compatible types for the 4 inch units include midrange, while the 6.5 inch units support midbass and full-range audio system configurations. These specifications cover the 2001 to 2006 model years.
| Year | Type | Size (inch) |
|---|---|---|
| 2006 | Midrange | 4 |
| 2005 | Midrange | 4 |
| 2004 | Midrange | 4 |
| 2003 | Midrange | 4 |
| 2002 | Midrange | 4 |
| 2001 | Midbass / Full-Range | 6.5 |
Speaker Types
| Type | Description |
|---|---|
| Midrange | A driver for the middle of the audible range, typically from about 300 Hz to 5,000 Hz, where vocals and most instruments sit. It is often paired with a tweeter and a woofer. |
| Midbass | A driver tuned for upper bass and lower midrange, roughly from 80 Hz to 500 Hz. It has longer cone travel than a full-range unit, which supports stronger bass in doors and panels. |
| Full-Range | A single driver that reproduces bass through treble without a separate crossover network. It is the simplest replacement option and is common in factory audio systems. |
Additional Notes
- The rear door panel location positions speakers within an enclosure formed by the door cavity, where mounting depth, baffle surface area, and proximity to interior trim panels are the primary spatial constraints.
- A 4-inch driver occupies a relatively compact footprint, which suits the dimensional limits of a rear door panel cutout where available surface area is often reduced by window mechanisms and structural reinforcements.
- The 6.5-inch driver specified for the 2001 Mercedes-Benz CL55 AMG rear door panel requires a larger cutout diameter and greater mounting depth than the 4-inch unit, making door cavity clearance a critical fitment consideration at that location.
- A midrange driver is acoustically designed to reproduce the middle portion of the audible frequency spectrum, generally spanning approximately 500 Hz to 5,000 Hz, covering vocal intelligibility and a significant portion of instrument fundamentals.
- In a rear door panel location, a midrange driver receives reflected and diffracted sound from interior surfaces before reaching occupants, which influences tonal character depending on door panel material and trim geometry.
- The 4-inch diameter limits low-frequency extension relative to larger drivers, as cone surface area and excursion capacity are reduced, reinforcing the midrange driver designation for the 2002 through 2006 model years at this location.
- A midbass driver is designed to handle the transitional frequency region between bass and midrange, roughly 80 Hz to 500 Hz, allowing reproduction of lower instrument fundamentals and kick transients that a dedicated midrange driver does not fully address.
- A full-range driver, as listed for the 2001 model year, is engineered to reproduce a broad span of the audible spectrum from a single cone, covering bass, midrange, and portions of high-frequency content without requiring a crossover-divided system at that location.
- The 6.5-inch cone area of the midbass/full-range driver allows greater air displacement than the 4-inch unit, which directly relates to the ability to move sufficient air volume for accurate reproduction of lower midrange and upper bass frequencies within the rear door cavity.
- Rear door panel placement positions speakers relatively close to the lower body of seated occupants, which affects the directional arrival angle of sound from the 4-inch midrange drivers across the 2002 through 2006 model years.